Window ventilator



Fehzes, 1935. QSWH l 1,992,782

` WINDOW VENTILATOR Filed NOV. 18, 1952 INVENTOR John 0. Smith BY ymmz s, 15AM ATTORNEY Patented Feb. 26, 1935 UNITED STATES PATENT OFFICE WINDOW vEN'IILAToR Y John o. smith, cleveland, ohio l Application November 1s, i932, serial No. 'e43,19"9' s claims. (C1. :Is-'99) This invention relates Ito window ventilators adapted to be inserted between a sliding sash andA the window sill or lintel and designed to permit passage of air into the interior of a room while intercepting direct drafts. j

Thedevice of the present invention has for an object to provide a Ventilatorwhich is collapsible, and which occupies very little space when col-g lapsed so that it can be conveniently kept on a window'ledge or in a bureau drawer when not in use. I I I I A further object is to provide a ventilator which will eifectually exclude snow and rain when drivenagainst the ventilator by aheavy wind.

Further objects are to provide a ventilator which is of attractive appearance, which can be manufactured at a small cost and which Iis easy to apply to or remove froma window.

With the above and otherobjects in view, the invention may be said -to comprise the deviceV as illustrated inthe accompanying drawing hereinafterIdescribed and particularly set forth in the appended claims, together with such Variations and modications thereof as will be apparent to one skilled in the art to which the invention appertains. Y

Reference should be had toV the accompanying drawing forming a part of this specification, in which:

Figure 1 is a perspective view showing the ventilator of the present invention placed in a window;

Fig. 2 is a side elevation of the ventilator extended; 1

Fig. 3 is a side elevation of the ventilator collapsed; I

Fig. 4 is a sectional view showingthe ventilator on the section line indicated at 4-4 of Fig. 2, and also showing the attachment of the ventilator to a window frame; Y Y

Fig. 5 is a fragmentary side elevation showing attachment of two ventilator units end to end.

The -ventilator of the present invention, as illustrated in the accompanying drawing,-consists of inner and outer accordion plaited walls composed of a suitable, flexible material such as a suitably stiifened waterproof fabric, waterproof paper, or other similar material. In forming the ventilator, two strips of the accordion plaited material are laid one upon the other and secured together at the ends and also preferably along the abutting tips of reentrant plaits. f

As herein shown the ventilator is composed o two identical plaited strips 1, the strip forming the outer wall having a row of holes 2 along the lower portion thereof,Ithe strip forming Ithe inner wall having a row o fholes 3 along. the upper portion. The abutting reentrant plaits are secured together by suitable means such as staples 4, so that the ventilatorisIcomposed of a row of joined collapsible tubes 5 which are disposed side by side throughout the length of the. ventilator strip. The end portions 6 0fthe strips 1 are secured together face to face by means of tubular rivets 7 anda laterally projecting tab 8 is secured to theIend portion `6 at each end. This tab may beIformed of fabricpaper or sheet metal, and if formed of: material other than sheet metalfpref erablyhas a facing 9 of sheet metal on the outwardlyvprojecting. portion thereof as shown in Fig. 4. This tab may be secured in place by one of the metalrivets 7 Iat each end ofthe ventilator. The laterally projecting portion of each tab 8 isA provided with aukeyhole slot 10 adapted to engage overthe head 11Iof a suitable fastening member such as a screw 12 secured in the jamb of the window frame.V I Y n I I The ventilator of the present invention may be made of any desired length and has considerable range of adjustability to enable it to fitrthe particular window to which it is to be applied. Y However, for Windowsof larger dimensions, two or moreI ventilator units may be secured together by lapping end portions 6 of the units andksecuring them together by means of clipsV 13 extending through the eyelets provided by the tubular rivets 7. j

As shown in Fig. 4 of the drawing, the tabs 8 are preferably so engaged with the fastening members 12 that the projecting portions A6` to which the tab isIsecured is held snugly against the inner face of the sash groove. i i When-a ventilator is placed in a window beneath -a sashthe loweredge thereof engages the sill of a window andthe upper edge thereofIis engaged bythe bottom of the sash, the sill closing the lower ends of the tubes 5 and the sashclosing the upper ends thereof. Air, however, is permittedto `enter the tubes through the holes 2, one in each of the tubes, and enters the room through the holes 3 in the inner wall, which are positioned suiciently above theV holes 2 to prevent `entry ofrain vor snow into a room. even though the rain or snow be driven against the ventilator by heavy winds.

In order toI easily adjust the ventilator'beneath the window sash, one or more intermediate tabs 15 are provided between the ends of the ventilator, these tabs being secured to one of the outwardly projecting plaits of the inner wallthereof.

In order to securely hold the ventilator beneath a window sash throughout its length, a number of sash engaging clips 16 are secured to the upper edges of the plaited walls, and these clips are provided with upwardly projecting prongs 17 which engage the bottom ofthe window sash and rmly hold the ventilator against displacement. f

It will be apparent that the present invention provides a'very simple, inexpensive and convenient ventilator which is a convenient article for tourists since it can be collapsed to a size small enough to permit it to be carried in a coat pocket and may be tted in windows of various widths.

It will also be apparent that very few sizes need be manufactured, by reason of theA adjustability and the ease with which units may be joined end to end.

Furthermore, it is to be understood that the particular form of product shown and described, and the particularprocedure set forth, are presented for purposes-of explanation and illustration and that various'modications of said product andprocedure canbe made without departing from my invention as defined in the appended claims.

What I claim is:

l. An extensible collapsible `ventilator adapted tobe interposed between an end of a sliding' window sash and the window frameandcornprising two flexible accordion plaited strips secured together attheir ends, the plaits extending transversely of the strips and the strips being disposed with the reentrant plaits of one opposite reentrant plait of the other wherebyvertical open v ended passages are providedV between the walls which are closed at their ends by the sash and frame when the ventilator-'is in place between the sash and frame, said innerand outer walls having openings at diiferent heights which with said vertical passages provide -for flow of air in a tortuous path lthrough the ventilator.

2. A `winddw ventilator comprising an extensible collapsible strip adaptedto be extended and i interposed transversely across a window opening between` a sliding window sash and its frame and' having means at the ends thereof for attachment to opposite'sides of the window frame, said strip being composed of a row of collapsible tubes disposed transversely ofthe strip and in vertical position in awindow opening, 4saidV tubes being joined one to another throughout their length, each tube having openings at diierent heights to the inner and outer sides of the ventilator.A Y

3. An adjustable Vwindow Ventilator adapted to be extended transversely across a window opening and interposed between'a window sash and its 'iframe and having extensible-collapsible inner and outer walls in the form ofaccordion plaited strips, said'strips having their reentrant plaits joined ledge to edgeto form a series of collapsible tubes which are disposed vertically in the window opening, said inner and outer walls having openings to'e'ach tube.

4. An 'adjustable window ventilatorv adapted to be extended transversely across a window opening Y and interposed'between a window'sash and its frame and having extensible collapsible inner and outer walls in the form of accordion plaited strips, said strips having their reentrant plaits joined edge to edge to form a series of collapsible tubes which are disposed vertically in the window opening, said inner and outer walls having openings to each tube, the inner and outer openings being at different heights, the strips having end portions joined face to face to provide extensions adapted to project into the sash groove of the window frame,'and laterally projecting tabs secured to said end portions for attachment to the window frame. Y

5. An adjustable window ventilator adapted to be interposed between' a window `sash and its frame and having extensible collapsible inner and outer walls in the form of accordion plaited strips, said strips having their reentrant plaits joined edge to edge to form a series of collapsible tubes, Vsaid inner and outer walls having openings to each tube, the inner and outer openings being at different heights, and sash engaging clips attached to the upperv edges of said inner and outer walls.

6. An adjustable window ventilator adapted to be 'interposed between a window sash and its frame'and having extensible collapsible inner and outer walls in the form of accordion 'plaited strips, said strips having theirreentrant'plaits joined edge to edge to form a series of collapsible tubes, said inner and outer walls having openings to each tube, the inner and outer openings being at different heights, and sash engagingciips attached to the upper Vedges of said Yinner and outer walls, said clipshaving upwardly projecting prongs for engagement with the window sash.

7. An adjustable window ventilator adapted to beV interposed between a windowsash and its frame and having extensible collapsible inner and outer walls in the form of accordion plaited strips, said strips Vhaving their Areentrant plaits joined edge to edge to form a series of collapsible tubes, said inner and outer walls having openings to each tube, the innerand outeropenings being at different heights, the strips having end portions joined faceto face by tubular rivets which provide eyelets for attaching clips whereby ventilator units may be joined end to end.

8, An adjustable window ventilator adapted to be extended transversely across a window `opening and interposed between a window sashrand its frame and having extensible collapsible inner and outer walls in the forni of accordion plaited strips, said strips having their reentrantpiaits joined edge to edge to form a series of collapsible tubes which are disposed vertically in the window opening, said innerand outer walls having openings to each tube, the'inner and outer openings being at different heights, the strips having end portions joined face to face to provide extensions adapted to project into the sash groove of lthe window frame, and laterally projecting tabs secured to said end portions for attachment to the window fraine, said'walis being formed of waterp'ro'cin paperand said tabs being formed of sheet metal.

" f JOHN OV. SMITH. 

